FSQ500N Fairchild Semiconductor, FSQ500N Datasheet

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FSQ500N

Manufacturer Part Number
FSQ500N
Description
IC PWM/SENSEFET 130KHZ 8-MDIP
Manufacturer
Fairchild Semiconductor
Series
FPS™r
Datasheet

Specifications of FSQ500N

Output Isolation
Isolated
Frequency Range
120kHz ~ 140kHz
Voltage - Input
5.5 V ~ 10 V
Voltage - Output
700V
Power (watts)
6.5W
Operating Temperature
-40°C ~ 85°C
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FSQ500N
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
© 2009 Fairchild Semiconductor Corporation
FSQ500N • Rev. 1.0.0
FSQ500N
Green Mode Fairchild Power Switch (FPS™)
Features
Applications
Related Resources
Ordering Information
Part Number
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
FSQ500N
Single-Chip 700V SenseFET Power Switch
Precision Fixed Operating Frequency: 130kHz
No-Load Consumption 250mW at 265V
Burst Mode
Internal Startup Switch
Soft-Start Time Tuned by External Capacitor
Under-Voltage Lockout (UVLO) with Hysteresis
Pulse-by-Pulse Current Limit
Overload Protection (OLP) and Internal Thermal
Shutdown Function (TSD) with Hysteresis
Auto-Restart Mode
No Need for Auxiliary Bias Winding
STB and DSL Power Supply
Home Appliance, IH Cooker, Auxiliary Power
Supply
AN-4137-Design Guidelines for Off-line Flyback
Converters using FPS
AN-4141-Troubleshooting and Design Tips for
Fairchild Power Switch (FPStm) Flyback
Applications
AN-4147-Design Guidelines for RCD Snubber of
Flyback
AN6075- (Flyback) -AN-6075-Compact Green-
Mode Adapter Using FSQ500L for Low Cost
Temperature Range
-40°C to +85°C
Operating
AC
with
Status
RoHS
Eco
8-Lead, Molded Dual Inline Package
(MDIP), JEDEC MS-001, .300 Inch Wide
Description
The FSQ500N is specially designed for low cost, small
set-top box, DSL, home appliance auxiliary power
supplies. This device combines a current-mode Pulse
Width Modulator (PWM) with a SenseFET. The
integrated PWM controller features include: a fixed
oscillator, Under-Voltage Lockout (UVLO) protection,
Overload Protection (OLP), Leading-Edge Blanking
(LEB),
Thermal Shutdown (TSD) protection with hysteresis,
and
sources for loop compensation. When compared to a
linear power supply, the FSQ500N reduces total size
and weight, while increasing efficiency, productivity, and
system reliability. This device provides a basic platform
for cost-effective flyback converters.
Notes:
1.
2.
3.
4.
Adapter
4.0W
The junction temperature can limit the maximum
output power.
230V
Typical continuous power in a non-ventilated
enclosed adapter measured at 50°C ambient.
Maximum practical continuous power in an open
frame design at 50°C ambient.
230V
temperature-compensated
an
AC
(3)
AC
or 100/115V
optimized
± 15%
Maximum Output Power
Package
Frame
Open
6.5W
(2)
(4)
AC
gate
with doubler.
Adapter
turn-on/turn-off
3.5W
85-265V
(3)
precision-current
(1)
www.fairchildsemi.com
October 2009
Packing
Method
Frame
AC
Open
5.5W
Rail
driver,
(4)

Related parts for FSQ500N

FSQ500N Summary of contents

Page 1

... For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. © 2009 Fairchild Semiconductor Corporation FSQ500N • Rev. 1.0.0 Description The FSQ500N is specially designed for low cost, small set-top box, DSL, home appliance auxiliary power supplies. This device combines a current-mode Pulse Width Modulator (PWM) with a SenseFET. The ...

Page 2

... Application Circuit Diagram AC IN Internal Block Diagram © 2009 Fairchild Semiconductor Corporation FSQ500N • Rev. 1.0.0 Drain PWM V V GND FB CC Figure 1. Typical Application Circuit Figure 2. Internal Block Diagram 2 DC OUT www.fairchildsemi.com ...

Page 3

... Name connection This pin is connected to a storage capacitor. A high-voltage regulator connected between pin and this pin provides the supply voltage to the FSQ500N at startup and when switching STR during normal operation. The FSQ500N eliminates the need for auxiliary bias winding and associated external components. ...

Page 4

... All items are tested with the standards JESD 51-2 and JESD 51-10 (DIP Package). 9. θ Free-standing, with no heat-sink, under natural convection Junction to lead thermal characteristics under Θ 10. θ JC closed to plastic interface for Θ © 2009 Fairchild Semiconductor Corporation FSQ500N • Rev. 1.0.0 Parameter Min. (5) 700 -0.3 (6) -40 -55 Parameter test condition ...

Page 5

... OP-FB I Startup Charging Current CH V Supply Shunt Regulator CCREG V Supply Shunt Regulator During CCREG_ (11) TSD TSD Note: 11. These parameters, although guaranteed, are not 100% tested in production. © 2009 Fairchild Semiconductor Corporation FSQ500N • Rev. 1.0.0 Test Conditions V = 6.5V 0V 6.5V 0V 25°C, I ...

Page 6

... Figure 6. UVLO Threshold Voltage (V vs. Temperature Burst Mode Voltage (V BURH 850 830 810 790 770 750 -40 -25 - Temperature (℃) Figure 8. Burst-Mode Voltage (V vs. Temperature © 2009 Fairchild Semiconductor Corporation FSQ500N • Rev. 1.0.0 = 25° Temperature 110 125 ) OP_Burst ) vs Temperature START 110 ...

Page 7

... Supply Shunt Regulator (V CCREG 7.0 6.8 6.6 6.4 6.2 6.0 -40 -25 - Temperature (℃) Figure 14. Supply Shunt Regulator (V vs. Temperature © 2009 Fairchild Semiconductor Corporation FSQ500N • Rev. 1.0.0 (Continued) = 25°C. A 5.0 4.8 4.6 4.4 4.2 4 110 125 ) Figure 11. MAX 5.5 5.3 5 ...

Page 8

... V the start voltage of 6.0V, the FSQ500N resumes its normal operation. If the fault condition is still not removed, the senseFET and HV/REG remain off and ...

Page 9

... TSD signal is removed and V While V increases from 5.7V to 6.5V, the soft-start CC function makes the senseFET turn on and off with no voltage and/or current stress. © 2009 Fairchild Semiconductor Corporation FSQ500N • Rev. 1.0.0 Power 6.5V 6.0V 5.7V Figure 19. Over-Temperature Protection (OTP) ) ...

Page 10

... Once it passes V (800mV), switching resumes. The feedback voltage then falls and the process repeats. Burst mode alternately enables and disables switching of the senseFET, reducing switching loss in standby mode. © 2009 Fairchild Semiconductor Corporation FSQ500N • Rev. 1.0.0 Vo set Vo decreases FB(Burst) ...

Page 11

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2009 Fairchild Semiconductor Corporation FSQ500N • Rev. 1.0.0 6.67 6.096 3.683 3 ...

Page 12

... Fairchild Semiconductor Corporation FSQ500N • Rev. 1.0.0 12 www.fairchildsemi.com ...

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